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Title: Partial oxidation: pyrolysis of cattle feedlot manure in the SGFM reactor. Final report, September 1, 1976--August 31, 1977

Abstract

The production of an ammonia synthesis gas or a medium-Btu fuel gas from cattle feedlot manure has been evaluated on a small, pilot-plant reactor. The reactor ( /sup approx./ 1/2 ton/day manure capacity) operates as a counter-current fluidized bed in which an air-steam mixture is used to fluidize and gasify the manure. This phase of the project is a continuation of earlier work. The reactor was operated at manure feed rates up to 23.6 Kg/hr, air feed rates up to 6,000 l/hr and steam feed rates up to 6.4 kg/hr. The average reactor temperature varied from 500 to 640/sup 0/C with the peak temperature in the reactor up to 950/sup 0/C. At these conditions, the total gas yield varied from 4.8 to 20.8 SCF/lb dry, ash-free feed. The raw gas had a heating value greater than 250 Btu/SCF in all cases. The maximum ethylene content in the raw gas was 7.0% by volume or, in terms of weight, 91 lb C/sub 2/H/sub 4//ton daf manure. A preliminary process design and economic evaluation of a commercial scale plant is recommended. This evaluation should include the production of an ammonia synthesis gas only and the production of ethylene and a synthesis gas.more » In addition to the pilot-plant study for manure, a bench-scale investigation was undertaken to compare the pyrolysis yields from manure and mesquite, a wood residue. This investigation is not complete, but the preliminary results indicate that the gas yield from mesquite pyrolysis is higher than from manure at similar conditions. The gas from mesquite pyrolysis contains approximately the same amount of ethylene as the manure pyrolysis gas.It is recommended that additional bench-scale studies be performed on the wood pyrolysis studies. A pilot-plant evaluation of wood pyrolysis is also recommended.« less

Authors:
; ; ; ; ; ; ;
Publication Date:
Research Org.:
Texas Tech Univ., Lubbock (USA)
OSTI Identifier:
6023064
Report Number(s):
ALO-3779-1
DOE Contract Number:
EY-76-S-04-3779
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
10 SYNTHETIC FUELS; 09 BIOMASS FUELS; GAS GENERATORS; PERFORMANCE; MANURES; GASIFICATION; PYROLYTIC GASES; CHEMICAL COMPOSITION; WOOD WASTES; AMMONIA; BENCH-SCALE EXPERIMENTS; ENERGY BALANCE; EXPERIMENTAL DATA; FLUIDIZED BED; GRAPHS; INTERMEDIATE BTU GAS; MATERIAL BALANCE; PARTIAL OXIDATION PROCESSES; PILOT PLANTS; PYROLYSIS; RECOMMENDATIONS; SYNTHESIS GAS; TABLES; AGRICULTURAL WASTES; CHEMICAL REACTIONS; DATA; DATA FORMS; DECOMPOSITION; ENERGY SOURCES; FLUIDS; FUEL GAS; FUELS; FUNCTIONAL MODELS; GAS FUELS; GASES; HYDRIDES; HYDROGEN COMPOUNDS; INFORMATION; NITROGEN COMPOUNDS; NITROGEN HYDRIDES; NUMERICAL DATA; PYROLYSIS PRODUCTS; SOLID WASTES; THERMOCHEMICAL PROCESSES; WASTES; 090320* - Inorganic Hydrogen Compound Fuels- Preparation- (1976-1989); 140504 - Solar Energy Conversion- Biomass Production & Conversion- (-1989); 090121 - Hydrocarbon Fuels- Chemical Synthesis- (1976-1989)

Citation Formats

Beck, S.R., Halligan, J.E., Lin, C.S., Bartsch, R.A., Huffman, W.J., Landeene, B.C., Ravi, R., and Hillman, P.E. Partial oxidation: pyrolysis of cattle feedlot manure in the SGFM reactor. Final report, September 1, 1976--August 31, 1977. United States: N. p., 1977. Web. doi:10.2172/6023064.
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Beck, S.R., Halligan, J.E., Lin, C.S., Bartsch, R.A., Huffman, W.J., Landeene, B.C., Ravi, R., & Hillman, P.E. Partial oxidation: pyrolysis of cattle feedlot manure in the SGFM reactor. Final report, September 1, 1976--August 31, 1977. United States. doi:10.2172/6023064.
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Beck, S.R., Halligan, J.E., Lin, C.S., Bartsch, R.A., Huffman, W.J., Landeene, B.C., Ravi, R., and Hillman, P.E. Tue . "Partial oxidation: pyrolysis of cattle feedlot manure in the SGFM reactor. Final report, September 1, 1976--August 31, 1977". United States. doi:10.2172/6023064. https://www.osti.gov/servlets/purl/6023064.
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@article{osti_6023064,
title = {Partial oxidation: pyrolysis of cattle feedlot manure in the SGFM reactor. Final report, September 1, 1976--August 31, 1977},
author = {Beck, S.R. and Halligan, J.E. and Lin, C.S. and Bartsch, R.A. and Huffman, W.J. and Landeene, B.C. and Ravi, R. and Hillman, P.E.},
abstractNote = {The production of an ammonia synthesis gas or a medium-Btu fuel gas from cattle feedlot manure has been evaluated on a small, pilot-plant reactor. The reactor ( /sup approx./ 1/2 ton/day manure capacity) operates as a counter-current fluidized bed in which an air-steam mixture is used to fluidize and gasify the manure. This phase of the project is a continuation of earlier work. The reactor was operated at manure feed rates up to 23.6 Kg/hr, air feed rates up to 6,000 l/hr and steam feed rates up to 6.4 kg/hr. The average reactor temperature varied from 500 to 640/sup 0/C with the peak temperature in the reactor up to 950/sup 0/C. At these conditions, the total gas yield varied from 4.8 to 20.8 SCF/lb dry, ash-free feed. The raw gas had a heating value greater than 250 Btu/SCF in all cases. The maximum ethylene content in the raw gas was 7.0% by volume or, in terms of weight, 91 lb C/sub 2/H/sub 4//ton daf manure. A preliminary process design and economic evaluation of a commercial scale plant is recommended. This evaluation should include the production of an ammonia synthesis gas only and the production of ethylene and a synthesis gas. In addition to the pilot-plant study for manure, a bench-scale investigation was undertaken to compare the pyrolysis yields from manure and mesquite, a wood residue. This investigation is not complete, but the preliminary results indicate that the gas yield from mesquite pyrolysis is higher than from manure at similar conditions. The gas from mesquite pyrolysis contains approximately the same amount of ethylene as the manure pyrolysis gas.It is recommended that additional bench-scale studies be performed on the wood pyrolysis studies. A pilot-plant evaluation of wood pyrolysis is also recommended.},
doi = {10.2172/6023064},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Nov 01 00:00:00 EST 1977},
month = {Tue Nov 01 00:00:00 EST 1977}
}
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DOI:  10.2172/6023064
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  • ; ;
    An investigation was undertaken to scale-up a partial oxidation reactor to evaluate the potential for producing an ammonia synthesis gas from cattle feedlot residue. The synthesis gas from the reactor can be further processed to produce ammonia using existing, commercial technology. During this phase of the study, a 2.5 meter long, falling-bed reactor was designed, constructed, and operated along with supporting feed and recovery equipment; manure feed rates to the reactor ranged from 7.7 to 23.6 kilograms per hour. The results show that significant yields of an ammonia synthesis gas and ethylene can be produced in the same reactor whenmore » the system is fed with a mixture of air, steam, and manure. This study and earlier bench-scale experiments show that the product gases are compatible with both ethylene and ammonia synthesis gas production.« less

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